I love making bread and usually manage to crank out a couple of loaves a week. Recently I have been experimenting with a sourdough starter and have had some great results.
Back at the beginning of December I created a starter using yoghurt, flour, water and raisins. After an initial sieve and then some judicious "feeding" it is still alive and well and living in the back of the fridge - coming out every few days for use in a new loaf.